Catalytic Suzuki couplings by an amido pincer complex of palladium

The catalytic feasibility of [PNP]PdCl, where [PNP](-) = bis(2-diphenylphosphinophenyl)amide, on biaryl syntheses from Suzuki-type cross-coupling reactions is demonstrated. A number of electronically activated, unactivated, and deactivated (hetero)aryl bromides and iodides is viable to react with arylboronic acids. Of particular note of this catalysis is its success in the high yield production of sterically encumbered tri-ortho-substituted biaryls and its operative compatibility under aerobic conditions in aqueous solutions. (C) 2015 Elsevier B.V. All rights reserved.